Nelsjay,
I too was looking to upgrade to the LA-150 from the LA-100 MkIII. Jud informed me that they do not do this upgrade anymore due to reliability issues. Based on your post I imagine your unit is fine. How would you compare the LA-100 MkIII to the LA-150. I was somewhat skeptical about those Russian tubes, but if the price was right I would have probably done the upgrade.
I too was looking to upgrade to the LA-150 from the LA-100 MkIII. Jud informed me that they do not do this upgrade anymore due to reliability issues. Based on your post I imagine your unit is fine. How would you compare the LA-100 MkIII to the LA-150. I was somewhat skeptical about those Russian tubes, but if the price was right I would have probably done the upgrade.